Apparatus for treating photographic plates.



T.BNDBR APPARATUS FOR TRBATING PHOTOGRAPHIG PLATES.

APPLICATION FILED NOV. V15, 1912.

'Patented 0@t.28,1913.

coLUMBlA PLANOGRA'PH CO.,WASHINGTON. D. c.

THEODOR BNDER, OF FRANKFORT-ON-THE-M'AIN, GERMANY.

APPARATUS FOR TREATING PHTOGRAPI-IIC PLATES.

Specification of. Letters Patent.

Patented 00h28, 1913.

Application led November 15, 1912. Serial No. 731,580.

To all whom @'25 may concern Be it known that I, THEoDon BNDER, a subject .of vthe German Emperor, and residing at Frankfort-on-the-Main, German Emof a sliding carrier, whose handle extends to., the outside of the casing, and may be -detachable, so as to admit of its'removal when it is desired, for instance, to use only one compartmentfor treating with the various liquids.

In the accompanying drawing, Figure l is a vertical cross section, and Fig. 2 a fro-nt elevation of the apparatus. Figs. 3, l and 5 are detail views, showing, on a larger scale,the plate carrier in longitudinal section, plan and end elevation respectively, while Figs. 6, 7 and 8 are detail views, drawn to the same scale, of a modified construction o the carrier, which is shown in side elevation, plan and transverse section respectively.

The casing t is divided into a number of compartments b, c, CZ, e, f, whose front and back walls preferably consist of ruby glass panes g, and are readily removable, so as to permit the introduction of new plates, and also allow of the panes being taken out when the apparatus is used in a dark chamber.

The exposed photographic plates l1. are supported by carriers m, furnished with marginal ledges i, 7c, and made of glass, or the like. These carriers are disposed in inclined position, the slant of the successive members being alternately in opposite directions. Each carrier has a tubular handle n, which tits over and slides on a horizontal rod 0, and extends across the various compartments b, c, d, e, f, and through the wall Q of the casing a, so that the plates h can be slid from any one compartment into any other compartment, as desired. Or, as shown in the modification illustrated in Figs. 6 8, the ledged carrier m1, il, k1 may slide on two parallel horizontal rods o1,

question. provided in the compartments al, e, f.

one at each side, while its solid 'handle al, which protrudes through the casing-Wall g, may be detachably fastened to the carrier at g), so that it .can y.be readily removed when desirable.

In the several compartments o, CZ, e, and f,-the plates are treated with the various liquids used, for instance for developing, iixing and washing. The compartment c serves as viewing-.chamber for the plates under treatment. As Fig. 1 shows, there is located below each carrier fm, 'and inclined at the `same angle, a tray o, whose oflice it is tol conduct the liquid employed to the `plate below, when the superposed plate has been slid `out` of 1the vcompartment in Similar trays or detiectors are The developing solution, or other liquids, collect in the cisterns s, s1, 82, s3, into which the l'bottom chamber of the apparatus is divided, and can be raised to the top of the apparatus again by conveyers t, t1, t2, t3, or other suitable means.

Having thus described my invention, I claim as newl. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superposed plate carriers located therein, and means for sliding each carrier separately from one compartment to the other.

2. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, .superposed plate carriers located therein and slanting alternately in opposite directions, and means for sliding each carrier separately from one compartment to the other.

3. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superpose-d plate carriers located therein, horizontally disposed means extending across the casing for supporting and guiding each carrier, and means for sliding the latter separately from one compartment to the other.

4. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superposed plate carriers located therein, horizontal rods extending across the casing for supporting and guiding each carrier, and means for sliding the latter separately from one compartment to the other.

5. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superposed plate carriers located therein, means for supporting and guiding each carrier, and a handle, operable from without the casing, detachably fastened to each carrier, whereby the latter can be moved separately from one compartment to the other.

6. ln apparatus for treating` exposed photograpliic plates, a casing divided into a plurality of compartments, super-posed plate carriers located therein, means for sliding each carrier separately from one compartment to the other, and superposed trays disposed in the compartments, one below the level of each carrier, for the purpose of delecting' liquid descending through the compartment.

7. ln apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superpose-d plate carriers located therein and slanting alternately in opposite directions, means for sliding` each carrier separately from one compartment to the other, and superposed liquiddeflectors inclined in the same directions as the carriers and disposed in the compartments one below the level of each carrier.

8. In apparatus for treating exposed photographic plates, a casing divided into a plurality of compartments, superposed plate carriers located therein, means for sliding each carrier separately from one compartment to the other, means for supplying a liquid to the top of the compartments, cisterns for collecting the liquid after passing down through the respective compartments, and means for conveying the same to the top ot' the apparatus again.

ln testimony whereofl I atliX my signature in presence of tWo witnesses.

THEODOR BNDER.

Witnesses:

ALroNs voN RAssELER, JEAN GRUND.

Copies of this patent may 'be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

